Question

find angle X in the below figure a 90 b 60 c 80 d 40​

Answer 1

120+y=180 (linear pair)

y=180-120

y=60 degree

In an isosceles triangle ,two angles are equal so we can conclude that

x=60 degree

option b is the correct answer

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Answer 2

Answer:

Answer is B 60

Step-by-step explanation:

exterior angle property: 180-120=60

since it is an isoceleus triangle, angles are also equal.

therefore, X=60